Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2021   04:17:48   (  -0.05,-137.19) (  -1.01,-141.32)  471.38                80
 06/20/2021   04:06:04   (  -0.05,-137.18) (  -0.35,-138.45)  144.70                80
 06/21/2021   03:56:59   (  -0.04,-137.18) (   0.31,-135.58)  181.78                80
 06/23/2021   16:15:01   (   0.03,-137.16) (   0.82,-140.48)  379.65                80
 06/24/2021   16:03:17   (   0.03,-137.14) (   0.14,-137.61)   53.95                80
 06/25/2021   15:54:12   (   0.02,-137.12) (  -0.54,-134.75)  271.62                80
 06/28/2021   04:15:12   (  -0.02,-137.08) (  -0.62,-139.71)  300.95                80
 06/29/2021   04:00:48   (  -0.01,-137.06) (   0.05,-136.85)   24.60                80
 06/30/2021   03:49:02   (  -0.01,-137.04) (   0.67,-133.97)  350.04                80